Hi,
I want to convert this following c/c++ code into vfp. This code is
provided by the Biometric TA SDK.
Their .NET/VB sample is working fine. But VB ocx control has some strange
problem in vfp. Sometimes, when I open the form to receive input from the
device through this ocx, it does not capture data. If I minimize the form
or vfp main window then it starts pulling/receiving the previous data (no
idea where vfp hold it in).
Now I want to use this ocx directly in vfp by calling its dll directly. So
I need the following code conversion in vfp.
C/C++ code
========================
typedef struct {
unsigned char event;
unsigned char reserved1;
unsigned short tnaEvent;
time_t eventTime;
unsigned userID;
unsigned reserved2;
} BSLogRecord;
BSLogRecord logRecords[128];
// BS_RET_CODE BS_ReadLogCache( int handle, int* numOfLog, BSLogRecord*
logRecord )
result = BS_ReadLogCache( handle, &numOfLog, logRecords );
========== END ============
I tried this in vfp as
lnhandle = 0
lnNumOfLog = 0
dime lcBuffs(128)
*- if lcBuffs = space(16)+chr(0) then vfp crash so it stored more space.
store space(254)+chr(0) to lcBuffs
DECLARE INTEGER BS_ReadLogCache IN BS_SDK.DLL INTEGER handle, INTEGER
@numOfLog, STRING @logRecord
result = BS_ReadLogCache(lnhandle, @lnNumOfLog, @lcBuffs)
lnNumOfLog : returns integer 2 when I record my finger on device
lcBuffs : garbage value
What will be the correct syntax in vfp?
TIA
Naeem
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